Specifies the name of a transform feedback object from which to retrieve a primitive count.

stream

Specifies the index of the transform feedback stream from which to retrieve a primitive count.

Description

glDrawTransformFeedbackStream draws primitives of a type specified by mode​ using a count retrieved from the transform feedback stream specified by stream​ of the transform feedback object specified by id​. Calling glDrawTransformFeedbackStream is equivalent to calling glDrawArrays​ with mode​ as specified, first​ set to zero, and count​ set to the number of vertices captured on vertex stream stream​ the last time transform feedback was active on the transform feedback object named by id​.